People take what scientists say about the age of the earth as absolute fact. There are many ASSUMPTIONS made in the calculations related to aging methods. The assumptions are generated from the idea that the earth is very old. This is circular reasoning. If the mathematical calculations were made using assumptions based upon the idea of a young earth, then the results from these calcs would be one of a young earth. People have been fed infomation based upon half-truths. Bottom line - "Let God be true, and every man a liar".